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该文采用廉价易得的萘和α-癸烯为原料,以氯铝酸离子液体催化Friedel-Crafts烷基化反应,合成了中间体癸基萘(DN),再经磺化与中和反应合成了结构明确、组成可调的驱油用阴离子型表面活性剂复合癸基萘磺酸钠(DNS)。中间体DN通过FTIR和1HNMR进行结构表征,产品DNS采用HPLC-MS分析组成,并测得其克拉夫特点小于0℃。测定了DNS对正构烷烃模拟油相的界面性能,结果表明,DNS1-1和DNS3均可在较低表面活性剂质量分数(0.25%～0.4%)下将油水界面张力降低至10-3mN/m数量级,并且具有良好的耐盐性,不同批次DNS1-1产品均能维持组成基本不变并稳定地重现组成相关的超低界面张力。
In this paper, an intermediate decylnaphthalene (DN) was synthesized by the Friedel-Crafts alkylation reaction of chloroaluminate ion liquid with cheap and readily available naphthalene and α-decene, and then sulfonated and neutralized Synthesis of a well-defined, adjustable composition of the flooding with anionic surfactant complex decyl naphthalenesulfonate (DNS). The intermediate DN was characterized by FTIR and 1HNMR. The product DNS was analyzed by HPLC-MS with a Krafft point of less than 0 ° C. The interfacial properties of DNS for n-paraffins simulated oil phase were investigated. The results show that both DNS1-1 and DNS3 can reduce the oil-water interfacial tension to 10-3mN / L at a lower surfactant concentration (0.25% -0.4%), m order of magnitude, and has good salt tolerance, different batches of DNS1-1 products can maintain the composition of the basic unchanged and stable reproduction of composition-related low interfacial tension.